Add global C flags to compile_commands

This solves linter warnings in editor by adding flags to ignore errors
we don't care about. This also means that compile_commands.json is
closer to the flags we actually use for compilation.

Test: Checked generated compile_commands for new flags.

Change-Id: Id583da6eb5151a9baa9a47771f5f937c88bc43f7

cc/compiler.go

@@ -539,7 +539,6 @@ func (compiler *baseCompiler) compilerFlags(ctx ModuleContext, flags Flags, deps
 		flags.Global.CommonFlags = append(flags.Global.CommonFlags, tc.ToolchainCflags())
 	}
 
-
 	cStd := parseCStd(compiler.Properties.C_std)
 	cppStd := parseCppStd(compiler.Properties.Cpp_std)
 
@@ -671,6 +670,16 @@ func (compiler *baseCompiler) compilerFlags(ctx ModuleContext, flags Flags, deps
 		flags.Local.CFlags = append(flags.Local.CFlags, "-DDO_NOT_CHECK_MANUAL_BINDER_INTERFACES")
 	}
 
+	flags.NoOverrideFlags = append(flags.NoOverrideFlags, "${config.NoOverrideGlobalCflags}")
+
+	if flags.Toolchain.Is64Bit() {
+		flags.NoOverrideFlags = append(flags.NoOverrideFlags, "${config.NoOverride64GlobalCflags}")
+	}
+
+	if android.IsThirdPartyPath(ctx.ModuleDir()) {
+		flags.NoOverrideFlags = append(flags.NoOverrideFlags, "${config.NoOverrideExternalGlobalCflags}")
+	}
+
 	return flags
 }