IR interpreter: Keep blocks' profile stats when the block table grows

JitBlock's move constructor didn't copy profileStats_, so every time the
vector of blocks reallocated, all execution counts and times went back to
zero, and --jit-profile under the IR interpreter only counted what ran since.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Core/MIPS/IR/IRJit.h

@@ -49,6 +49,7 @@ public:
 		origSize_ = b.origSize_;
 		origFirstOpcode_ = b.origFirstOpcode_;
 		numIRInstructions_ = b.numIRInstructions_;
+		profileStats_ = b.profileStats_;
 		b.entry_ = 0;
 	}