[clang-tblgen][NFC] renames Diagnostic.Text to Diagnostic.Summary

The [Improving Clang's Diagnostics RFC][1] identifies eight broad fields
for Clang to surface, two of which are text-based. Since the current
diagnostics more closely map to the diagnostic summary (or headline), we
should rename them to ensure that there's no confusion when
Diagnostic.Reason is introduced in the near future.

[1]: https://discourse.llvm.org/t/rfc-improving-clang-s-diagnostics/62584

Reviewed By: aaron.ballman, erichkeane

Differential Revision: https://reviews.llvm.org/D135820

Author: cjdb

clang/include/clang/Basic/Diagnostic.td

@@ -75,10 +75,10 @@ include "DiagnosticGroups.td"
 
 
 // All diagnostics emitted by the compiler are an indirect subclass of this.
-class Diagnostic<string text, DiagClass DC, Severity defaultmapping> {
+class Diagnostic<string summary, DiagClass DC, Severity defaultmapping> {
   /// Component is specified by the file with a big let directive.
   string         Component = ?;
-  string         Text = text;
+  string         Summary = summary;
   DiagClass      Class = DC;
   SFINAEResponse SFINAE = SFINAE_Suppress;
   bit            AccessControl = 0;

clang/include/clang/Basic/DiagnosticCommonKinds.td

@@ -269,7 +269,7 @@ def note_constexpr_invalid_template_arg : Note<
   "%select{type_info object|string literal|temporary object|"
   "predefined '%3' variable}2 is not allowed in a template argument">;
 def err_constexpr_invalid_template_arg : Error<
-  note_constexpr_invalid_template_arg.Text>;
+  note_constexpr_invalid_template_arg.Summary>;
 
 // Sema && Frontend
 let CategoryName = "Inline Assembly Issue" in {

clang/include/clang/Basic/DiagnosticFrontendKinds.td

@@ -276,7 +276,7 @@ def warn_avx_calling_convention
     : Warning<"AVX vector %select{return|argument}0 of type %1 without '%2' "
               "enabled changes the ABI">,
       InGroup<DiagGroup<"psabi">>;
-def err_avx_calling_convention : Error<warn_avx_calling_convention.Text>;
+def err_avx_calling_convention : Error<warn_avx_calling_convention.Summary>;
 
 def err_alias_to_undefined : Error<
   "%select{alias|ifunc}0 must point to a defined "

clang/include/clang/Basic/DiagnosticLexKinds.td

@@ -461,7 +461,7 @@ def ext_pp_gnu_line_directive : Extension<
 def err_pp_invalid_directive : Error<
   "invalid preprocessing directive%select{|, did you mean '#%1'?}0">;
 def warn_pp_invalid_directive : Warning<
-  err_pp_invalid_directive.Text>, InGroup<DiagGroup<"unknown-directives">>;
+  err_pp_invalid_directive.Summary>, InGroup<DiagGroup<"unknown-directives">>;
 def err_pp_directive_required : Error<
   "%0 must be used within a preprocessing directive">;
 def err_pp_file_not_found : Error<"'%0' file not found">, DefaultFatal;
@@ -704,7 +704,7 @@ def ext_pp_bad_paste_ms : ExtWarn<
 def err_pp_operator_used_as_macro_name : Error<
   "C++ operator %0 (aka %1) used as a macro name">;
 def ext_pp_operator_used_as_macro_name : Extension<
-  err_pp_operator_used_as_macro_name.Text>, InGroup<MicrosoftCppMacro>;
+  err_pp_operator_used_as_macro_name.Summary>, InGroup<MicrosoftCppMacro>;
 def err_pp_illegal_floating_literal : Error<
   "floating point literal in preprocessor expression">;
 def err_pp_line_requires_integer : Error<

clang/include/clang/Basic/DiagnosticSemaKinds.td

@@ -67,10 +67,10 @@ class InGroup<DiagGroup G> { DiagGroup Group = G; }
 include "DiagnosticDocs.inc"
 
 // All diagnostics emitted by the compiler are an indirect subclass of this.
-class Diagnostic<string text, DiagClass DC, Severity defaultmapping> {
+class Diagnostic<string summary, DiagClass DC, Severity defaultmapping> {
   /// Component is specified by the file with a big let directive.
   string         Component = ?;
-  string         Text = text;
+  string         Summary = summary;
   DiagClass      Class = DC;
   SFINAEResponse SFINAE = SFINAE_Suppress;
   bit            AccessControl = 0;

clang/test/TableGen/DiagnosticBase.inc

@@ -1165,7 +1165,7 @@ std::vector<std::string>
 DiagnosticTextBuilder::buildForDocumentation(StringRef Severity,
                                              const Record *R) {
   EvaluatingRecordGuard Guard(&EvaluatingRecord, R);
-  StringRef Text = R->getValueAsString("Text");
+  StringRef Text = R->getValueAsString("Summary");
 
   DiagText D(*this, Text);
   TextPiece *Prefix = D.New<TextPiece>(Severity, Severity);
@@ -1184,7 +1184,7 @@ DiagnosticTextBuilder::buildForDocumentation(StringRef Severity,
 
 std::string DiagnosticTextBuilder::buildForDefinition(const Record *R) {
   EvaluatingRecordGuard Guard(&EvaluatingRecord, R);
-  StringRef Text = R->getValueAsString("Text");
+  StringRef Text = R->getValueAsString("Summary");
   DiagText D(*this, Text);
   std::string Result;
   DiagTextPrinter{*this, Result}.Visit(D.Root);
@@ -1702,7 +1702,7 @@ void writeHeader(StringRef Str, raw_ostream &OS, char Kind = '-') {
 
 void writeDiagnosticText(DiagnosticTextBuilder &Builder, const Record *R,
                          StringRef Role, raw_ostream &OS) {
-  StringRef Text = R->getValueAsString("Text");
+  StringRef Text = R->getValueAsString("Summary");
   if (Text == "%0")
     OS << "The text of this diagnostic is not controlled by Clang.\n\n";
   else {