[Timers] Avoid YAML-special characters in timer names.

Author: graydon

lib/FrontendTool/FrontendTool.cpp

@@ -599,7 +599,7 @@ static bool performCompile(std::unique_ptr<CompilerInstance> &Instance,
     performSILLinking(SM.get(), true);
 
   {
-    SharedTimer timer("SIL verification (pre-optimization)");
+    SharedTimer timer("SIL verification, pre-optimization");
     SM->verify();
   }
 
@@ -626,7 +626,7 @@ static bool performCompile(std::unique_ptr<CompilerInstance> &Instance,
   }
 
   {
-    SharedTimer timer("SIL verification (post-optimization)");
+    SharedTimer timer("SIL verification, post-optimization");
     SM->verify();
   }
 

lib/Serialization/Serialization.cpp

@@ -4525,7 +4525,7 @@ void swift::serialize(ModuleOrSourceFile DC,
 
   bool hadError = withOutputFile(getContext(DC), options.OutputPath,
                                  [&](raw_ostream &out) {
-    SharedTimer timer("Serialization (swiftmodule)");
+    SharedTimer timer("Serialization, swiftmodule");
     Serializer::writeToStream(out, DC, M, options);
   });
   if (hadError)
@@ -4534,7 +4534,7 @@ void swift::serialize(ModuleOrSourceFile DC,
   if (options.DocOutputPath && options.DocOutputPath[0] != '\0') {
     (void)withOutputFile(getContext(DC), options.DocOutputPath,
                          [&](raw_ostream &out) {
-      SharedTimer timer("Serialization (swiftdoc)");
+      SharedTimer timer("Serialization, swiftdoc");
       Serializer::writeDocToStream(out, DC, options.GroupInfoPath,
                                    getContext(DC));
     });