renamed SkSL types in preparation for killing precision modifiers

Bug: skia:
Change-Id: Iff0289e25355a89cdc289a0892ed755dd1b1c900
Reviewed-on: https://skia-review.googlesource.com/27703
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/sksl/ir/SkSLConstructor.h b/src/sksl/ir/SkSLConstructor.h
index 05f4096..beed0f7 100644
--- a/src/sksl/ir/SkSLConstructor.h
+++ b/src/sksl/ir/SkSLConstructor.h
@@ -16,7 +16,7 @@
 namespace SkSL {
 
 /**
- * Represents the construction of a compound type, such as "vec2(x, y)".
+ * Represents the construction of a compound type, such as "float2x, y)".
  *
  * Vector constructors will always consist of either exactly 1 scalar, or a collection of vectors
  * and scalars totalling exactly the right number of scalar components.