Don't compile OSR methods that have phi equivalents at loop entry.

We currently don't handle this in the stack map, where we only encode
one stack slot for a dex register.

Bug: 136698025
Test: 721-osr
Change-Id: Ib395ed1165387ad5446a463c307cc0a45e365885
diff --git a/compiler/optimizing/optimizing_compiler_stats.h b/compiler/optimizing/optimizing_compiler_stats.h
index ddd57f5..83dbef7 100644
--- a/compiler/optimizing/optimizing_compiler_stats.h
+++ b/compiler/optimizing/optimizing_compiler_stats.h
@@ -61,6 +61,7 @@
   kNotCompiledVerificationError,
   kNotCompiledVerifyAtRuntime,
   kNotCompiledIrreducibleLoopAndStringInit,
+  kNotCompiledPhiEquivalentInOsr,
   kInlinedMonomorphicCall,
   kInlinedPolymorphicCall,
   kMonomorphicCall,