Fix typo in comment

Author: Erich Keane

sycl/test/regression/unnamed-lambda.cpp

@@ -35,7 +35,7 @@ void bar(cl::sycl::queue queue) {
 }
 
 // This validates the case where using a lambda in a kernel in a different order
-// than the lexical order of the lambdas. In a previous implemetation of
+// than the lexical order of the lambdas. In a previous implementation of
 // __builtin_sycl_unique_stable_name this would result in the value of the
 // builtin being invalidated, causing a compile error. The redesigned
 // implementation should no longer have a problem with this pattern.