Update coreclr's .editorconfig to match corefx's (dotnet#26214)

Author: stephentoub

.editorconfig

@@ -1,5 +1,4 @@
-# EditorConfig is awesome:
-http://EditorConfig.org
+# editorconfig.org
 
 # top-most EditorConfig file
 root = true
@@ -12,6 +11,9 @@ insert_final_newline = true
 indent_style = space
 indent_size = 4
 
+[project.json]
+indent_size = 2
+
 # C# files
 [*.cs]
 # New line preferences
@@ -27,75 +29,89 @@ csharp_new_line_between_query_expression_clauses = true
 csharp_indent_block_contents = true
 csharp_indent_braces = false
 csharp_indent_case_contents = true
+csharp_indent_case_contents_when_block = true
 csharp_indent_switch_labels = true
 csharp_indent_labels = one_less_than_current
 
+# Modifier preferences
+csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:suggestion
+
 # avoid this. unless absolutely necessary
 dotnet_style_qualification_for_field = false:suggestion
 dotnet_style_qualification_for_property = false:suggestion
 dotnet_style_qualification_for_method = false:suggestion
 dotnet_style_qualification_for_event = false:suggestion
 
-# only use var when it's obvious what the variable type is
-csharp_style_var_for_built_in_types = false:none
+# Types: use keywords instead of BCL types, and permit var only when the type is clear
+csharp_style_var_for_built_in_types = false:suggestion
 csharp_style_var_when_type_is_apparent = false:none
 csharp_style_var_elsewhere = false:suggestion
-
-# use language keywords instead of BCL types
 dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
 dotnet_style_predefined_type_for_member_access = true:suggestion
 
 # name all constant fields using PascalCase
 dotnet_naming_rule.constant_fields_should_be_pascal_case.severity = suggestion
 dotnet_naming_rule.constant_fields_should_be_pascal_case.symbols  = constant_fields
 dotnet_naming_rule.constant_fields_should_be_pascal_case.style    = pascal_case_style
-
 dotnet_naming_symbols.constant_fields.applicable_kinds   = field
 dotnet_naming_symbols.constant_fields.required_modifiers = const
-
 dotnet_naming_style.pascal_case_style.capitalization = pascal_case
 
 # static fields should have s_ prefix
 dotnet_naming_rule.static_fields_should_have_prefix.severity = suggestion
 dotnet_naming_rule.static_fields_should_have_prefix.symbols  = static_fields
 dotnet_naming_rule.static_fields_should_have_prefix.style    = static_prefix_style
-
 dotnet_naming_symbols.static_fields.applicable_kinds   = field
 dotnet_naming_symbols.static_fields.required_modifiers = static
-
 dotnet_naming_style.static_prefix_style.required_prefix = s_
 dotnet_naming_style.static_prefix_style.capitalization = camel_case 
 
 # internal and private fields should be _camelCase
 dotnet_naming_rule.camel_case_for_private_internal_fields.severity = suggestion
 dotnet_naming_rule.camel_case_for_private_internal_fields.symbols  = private_internal_fields
 dotnet_naming_rule.camel_case_for_private_internal_fields.style    = camel_case_underscore_style
-
 dotnet_naming_symbols.private_internal_fields.applicable_kinds = field
 dotnet_naming_symbols.private_internal_fields.applicable_accessibilities = private, internal
-
 dotnet_naming_style.camel_case_underscore_style.required_prefix = _
 dotnet_naming_style.camel_case_underscore_style.capitalization = camel_case 
 
 # Code style defaults
-dotnet_sort_system_directives_first = true
-csharp_preserve_single_line_blocks = true
-csharp_preserve_single_line_statements = false
+csharp_using_directive_placement = outside_namespace:suggestion
+dotnet_sort_system_directives_first = true:suggestion
+csharp_prefer_braces = true:refactoring
+csharp_preserve_single_line_blocks = true:none
+csharp_preserve_single_line_statements = false:none
+csharp_prefer_static_local_function = true:suggestion
+csharp_prefer_simple_using_statement = false:none
+csharp_style_prefer_switch_expression = true:suggestion
+
+# Code quality
+dotnet_style_readonly_field = true:suggestion
+dotnet_code_quality_unused_parameters = non_public:suggestion
 
 # Expression-level preferences
 dotnet_style_object_initializer = true:suggestion
 dotnet_style_collection_initializer = true:suggestion
 dotnet_style_explicit_tuple_names = true:suggestion
 dotnet_style_coalesce_expression = true:suggestion
 dotnet_style_null_propagation = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:suggestion
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_auto_properties = true:suggestion
+dotnet_style_prefer_conditional_expression_over_assignment = true:refactoring
+dotnet_style_prefer_conditional_expression_over_return = true:refactoring
+csharp_prefer_simple_default_expression = true:suggestion
 
 # Expression-bodied members
-csharp_style_expression_bodied_methods = false:none
-csharp_style_expression_bodied_constructors = false:none
-csharp_style_expression_bodied_operators = false:none
-csharp_style_expression_bodied_properties = true:none
-csharp_style_expression_bodied_indexers = true:none
-csharp_style_expression_bodied_accessors = true:none
+csharp_style_expression_bodied_methods = true:refactoring
+csharp_style_expression_bodied_constructors = true:refactoring
+csharp_style_expression_bodied_operators = true:refactoring
+csharp_style_expression_bodied_properties = true:refactoring
+csharp_style_expression_bodied_indexers = true:refactoring
+csharp_style_expression_bodied_accessors = true:refactoring
+csharp_style_expression_bodied_lambdas = true:refactoring
+csharp_style_expression_bodied_local_functions = true:refactoring
 
 # Pattern matching
 csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
@@ -106,6 +122,11 @@ csharp_style_inlined_variable_declaration = true:suggestion
 csharp_style_throw_expression = true:suggestion
 csharp_style_conditional_delegate_call = true:suggestion
 
+# Other features
+csharp_style_prefer_index_operator = false:none
+csharp_style_prefer_range_operator = false:none
+csharp_style_pattern_local_over_anonymous_function = false:none
+
 # Space preferences
 csharp_space_after_cast = false
 csharp_space_after_colon_in_inheritance_clause = true
@@ -130,19 +151,32 @@ csharp_space_between_method_declaration_parameter_list_parentheses = false
 csharp_space_between_parentheses = false
 csharp_space_between_square_brackets = false
 
-[*.{asm,inc}]
-indent_size = 8
+# Analyzers
+dotnet_code_quality.ca1802.api_surface = private, internal
+
+# C++ Files
+[*.{cpp,h,in}]
+curly_bracket_next_line = true
+indent_brace_style = Allman
 
 # Xml project files
 [*.{csproj,vcxproj,vcxproj.filters,proj,nativeproj,locproj}]
 indent_size = 2
 
-# Xml config files
-[*.{props,targets,config,nuspec}]
+# Xml build files
+[*.builds]
 indent_size = 2
 
-[CMakeLists.txt]
+# Xml files
+[*.{xml,stylecop,resx,ruleset}]
 indent_size = 2
 
-[*.cmd]
+# Xml config files
+[*.{props,targets,config,nuspec}]
 indent_size = 2
+
+# Shell scripts
+[*.sh]
+end_of_line = lf
+[*.{cmd, bat}]
+end_of_line = crlf