Allow symbols to start from the digit if target requests it. This allows, e.g. pinning
variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82227 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430MCAsmInfo.cpp b/lib/Target/MSP430/MSP430MCAsmInfo.cpp
index 2309a5f..069313e 100644
--- a/lib/Target/MSP430/MSP430MCAsmInfo.cpp
+++ b/lib/Target/MSP430/MSP430MCAsmInfo.cpp
@@ -16,4 +16,5 @@
 
 MSP430MCAsmInfo::MSP430MCAsmInfo(const Target &T, const StringRef &TT) {
   AlignmentIsInBytes = false;
+  AllowNameToStartWithDigit = true;
 }