Add DiagnosticGroup for installapi warnings

Author: cyndyishida

clang/include/clang/Basic/DiagnosticGroups.td

@@ -1508,3 +1508,7 @@ def ReadOnlyPlacementChecks : DiagGroup<"read-only-types">;
 // Warnings and fixes to support the "safe buffers" programming model.
 def UnsafeBufferUsageInContainer : DiagGroup<"unsafe-buffer-usage-in-container">;
 def UnsafeBufferUsage : DiagGroup<"unsafe-buffer-usage", [UnsafeBufferUsageInContainer]>;
+
+// Warnings and notes InstallAPI verification.
+def InstallAPIViolation : DiagGroup<"installapi-violation">;
+

clang/include/clang/Basic/DiagnosticInstallAPIKinds.td

@@ -18,22 +18,22 @@ def err_no_output_file: Error<"no output file specified">;
 } // end of command line category.
 
 let CategoryName = "Verification" in {
-def warn_target: Warning<"violations found for %0">;
+def warn_target: Warning<"violations found for %0">, InGroup<InstallAPIViolation>;
 def err_library_missing_symbol : Error<"declaration has external linkage, but dynamic library doesn't have symbol '%0'">;
-def warn_library_missing_symbol : Warning<"declaration has external linkage, but dynamic library doesn't have symbol '%0'">;
+def warn_library_missing_symbol : Warning<"declaration has external linkage, but dynamic library doesn't have symbol '%0'">, InGroup<InstallAPIViolation>;
 def err_library_hidden_symbol : Error<"declaration has external linkage, but symbol has internal linkage in dynamic library '%0'">;
-def warn_library_hidden_symbol : Warning<"declaration has external linkage, but symbol has internal linkage in dynamic library '%0'">;
-def warn_header_hidden_symbol : Warning<"symbol exported in dynamic library, but marked hidden in declaration '%0'">;
+def warn_library_hidden_symbol : Warning<"declaration has external linkage, but symbol has internal linkage in dynamic library '%0'">, InGroup<InstallAPIViolation>;
+def warn_header_hidden_symbol : Warning<"symbol exported in dynamic library, but marked hidden in declaration '%0'">, InGroup<InstallAPIViolation>;
 def err_header_hidden_symbol : Error<"symbol exported in dynamic library, but marked hidden in declaration '%0'">;
 def err_header_symbol_missing : Error<"no declaration found for exported symbol '%0' in dynamic library">;
 def warn_header_availability_mismatch : Warning<"declaration '%0' is marked %select{available|unavailable}1,"
-  " but symbol is %select{not |}2exported in dynamic library">;
+  " but symbol is %select{not |}2exported in dynamic library">, InGroup<InstallAPIViolation>;
 def err_header_availability_mismatch : Error<"declaration '%0' is marked %select{available|unavailable}1,"
   " but symbol is %select{not |}2exported in dynamic library">;
 def warn_dylib_symbol_flags_mismatch : Warning<"dynamic library symbol '%0' is "
-  "%select{weak defined|thread local}1, but its declaration is not">;
+  "%select{weak defined|thread local}1, but its declaration is not">, InGroup<InstallAPIViolation>;
 def warn_header_symbol_flags_mismatch : Warning<"declaration '%0' is "
-  "%select{weak defined|thread local}1, but symbol is not in dynamic library">;
+  "%select{weak defined|thread local}1, but symbol is not in dynamic library">, InGroup<InstallAPIViolation>;
 def err_dylib_symbol_flags_mismatch : Error<"dynamic library symbol '%0' is "
   "%select{weak defined|thread local}1, but its declaration is not">;
 def err_header_symbol_flags_mismatch : Error<"declaration '%0' is "