Dart SDK Spelling b, c, and d.

runtime/vm/constants_dbc.h

Index: runtime/vm/constants_dbc.h
diff --git a/runtime/vm/constants_dbc.h b/runtime/vm/constants_dbc.h
index a1c1e312e8e5a0ded58d87bb92ed2d4f27fb9f4e..9f42855e69a1bdc091d00e4600a24f6eb9fb2370 100644
--- a/runtime/vm/constants_dbc.h
+++ b/runtime/vm/constants_dbc.h
@@ -986,8 +986,8 @@ const FpuRegister FpuTMP = kFakeFpuRegister;
 const intptr_t kNumberOfFpuRegisters = 1;
 
 // After a comparison, the condition NEXT_IS_TRUE means the following
-// instruction is executed if the comparision is true and skipped over overwise.
-// Conidition NEXT_IS_FALSE means the following instruction is executed if the
+// instruction is executed if the comparison is true and skipped over overwise.
+// Condition NEXT_IS_FALSE means the following instruction is executed if the
 // comparison is false and skipped over otherwise.
 enum Condition { NEXT_IS_TRUE, NEXT_IS_FALSE };