[clangd] Type: ⇨ ∈; 🡺 ⇨ →

[sammccall]

Summary

The blocky arrow is a fairly obscure character, and a couple of fonts I checked
don't have it :-(

"Type" is long and text-y, I do think people will get used to element-of (which
is very commonly present).

[merge_guards_bot]

Unit tests: fail. 62134 tests passed, 7 failed and 811 were skipped.

failed: Clangd.Clangd/hover.test
failed: Clangd Unit Tests._/ClangdTests/Hover.Present
failed: libc++.std/language_support/cmp/cmp_partialord/partialord.pass.cpp
failed: libc++.std/language_support/cmp/cmp_strongeq/cmp.strongeq.pass.cpp
failed: libc++.std/language_support/cmp/cmp_strongord/strongord.pass.cpp
failed: libc++.std/language_support/cmp/cmp_weakeq/cmp.weakeq.pass.cpp
failed: libc++.std/language_support/cmp/cmp_weakord/weakord.pass.cpp

clang-tidy: pass.

clang-format: pass.

Build artifacts: diff.json, clang-tidy.txt, clang-format.patch, CMakeCache.txt, console-log.txt, test-results.xml

Pre-merge checks is in beta. Report issue. Please join beta or enable it for your project.

clang-tools-extra/clangd/Hover.cpp

markup::Document HoverInfo::present() const {
   // Print Types on their own lines to reduce chances of getting line-wrapped by
   // editor, as they might be long.
   if (ReturnType) {
     // For functions we display signature in a list form, e.g.:
     // 🡺 `x`
     // Parameters:
     // - `bool param1`
     // - `int param2 = 5`
-    Output.addParagraph().appendText("🡺").appendCode(*ReturnType);
+    Output.addParagraph().appendText("→").appendCode(*ReturnType);
     if (Parameters && !Parameters->empty()) {
       Output.addParagraph().appendText("Parameters:");
       markup::BulletList &L = Output.addBulletList();
       for (const auto &Param : *Parameters) {
         std::string Buffer;
         llvm::raw_string_ostream OS(Buffer);
         OS << Param;
         L.addItem().addParagraph().appendCode(std::move(OS.str()));
       }
     }
   } else if (Type) {
-    Output.addParagraph().appendText("Type: ").appendCode(*Type);
+    Output.addParagraph().appendText("∈").appendCode(*Type);
   }
 
   if (Value) {
     markup::Paragraph &P = Output.addParagraph();
     P.appendText("Value =");
     P.appendCode(*Value);
   }