MC/AsmParser: Handle a missed case of floating literals in the lexer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114733 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/AsmLexer.cpp b/lib/MC/MCParser/AsmLexer.cpp
index 59da381..1a71d24 100644
--- a/lib/MC/MCParser/AsmLexer.cpp
+++ b/lib/MC/MCParser/AsmLexer.cpp
@@ -145,7 +145,7 @@
 ///   Decimal integer: [1-9][0-9]*
 AsmToken AsmLexer::LexDigit() {
   // Decimal integer: [1-9][0-9]*
-  if (CurPtr[-1] != '0') {
+  if (CurPtr[-1] != '0' || CurPtr[0] == '.') {
     while (isdigit(*CurPtr))
       ++CurPtr;