Subzero, Wasm: Link and run torture tests; bug fixes.

src/IceTargetLoweringARM32.cpp

Index: src/IceTargetLoweringARM32.cpp
diff --git a/src/IceTargetLoweringARM32.cpp b/src/IceTargetLoweringARM32.cpp
index 3de321e23ea0cf4800d4f418d5b5b4df01ea45e8..8c0aca63453aac4ac04a4eab3de20cf0fae11e8c 100644
--- a/src/IceTargetLoweringARM32.cpp
+++ b/src/IceTargetLoweringARM32.cpp
@@ -5818,6 +5818,10 @@ void TargetARM32::lowerSwitch(const InstSwitch *Instr) {
   _br(Instr->getLabelDefault());
 }
 
+void TargetARM32::lowerBreakpoint(const InstBreakpoint *Instr) {
+  UnimplementedLoweringError(this, Instr);
+}
+
 void TargetARM32::lowerUnreachable(const InstUnreachable * /*Instr*/) {
   _trap();
 }