Add VSQRT instruction to the integrated ARM assembler.

src/IceInstARM32.h

Index: src/IceInstARM32.h
diff --git a/src/IceInstARM32.h b/src/IceInstARM32.h
index 413f0f5aa3da4b420e29f85a9572c17280780e8f..21505a185045fd2267d2d80ddf293bb971cbf65a 100644
--- a/src/IceInstARM32.h
+++ b/src/IceInstARM32.h
@@ -571,6 +571,7 @@ public:
       return;
     emitUnaryopFP(Opcode, this, Func);
   }
+  void emitIAS(const Cfg *Func) const override;
   void dump(const Cfg *Func) const override {
     if (!BuildDefs::dump())
       return;