[llvm] [NFC] Run clang-format on TGLexer and TGParser (PR #151509)

[Nemanja Ivanovic via llvm-commits]

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@@ -1525,39 +1540,84 @@ const Init *TGParser::ParseOperation(Record *CurRec, const RecTy *ItemType) {
   case tgtok::XSetDagOpName: { // Value ::= !binop '(' Value ',' Value ')'
     tgtok::TokKind OpTok = Lex.getCode();
     SMLoc OpLoc = Lex.getLoc();
-    Lex.Lex();  // eat the operation
+    Lex.Lex(); // eat the operation
 
     BinOpInit::BinaryOp Code;
     switch (OpTok) {
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nemanjai wrote:

Unrelated to this PR, but it might make this code more readable if this `switch` and the one on line 1634 were actually pulled out into a separate function with internal linkage that would set `Code, Type, ArgType` rather than having two nested `switch` statements in one `case` of the outer one.

https://github.com/llvm/llvm-project/pull/151509