Don't shadow the name textRange.
Don't shadow the name textRange.

In TextLine::iterateThroughSingleRunByStyles there is a parameter named
textRange and a local variable also named textRange. This shadowing is a
bit confusing both when reading the code and when debugging, so rename
the local to runStyleTextRange to better describe what it is for.

Change-Id: Iea2f668b6e854140d749efa5c595de6d851118db
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/290496
Reviewed-by: Julia Lavrova <66a91ddff0a66e6df510780220f7ed6687af5ca5@google.com>
Commit-Queue: Ben Wagner <53965154ffeecc4a10886eab9259e95965f2979a@google.com>

google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia