patch 8.0.0360: sometimes VimL is used instead of "Vim script"

Problem:    Sometimes VimL is used, which is confusing.
Solution:   Consistently use "Vim script". (Hirohito Higashi)
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index b0441f7..7e18b11 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -199,7 +199,7 @@
 	    test_undo.res \
 	    test_usercommands.res \
 	    test_viminfo.res \
-	    test_viml.res \
+	    test_vimscript.res \
 	    test_visual.res \
 	    test_window_id.res \
 	    test_writefile.res \
diff --git a/src/testdir/runtest.vim b/src/testdir/runtest.vim
index 33490b6..0c0a197 100644
--- a/src/testdir/runtest.vim
+++ b/src/testdir/runtest.vim
@@ -147,7 +147,7 @@
 let s:errors = []
 let s:messages = []
 let s:skipped = []
-if expand('%') =~ 'test_viml.vim'
+if expand('%') =~ 'test_vimscript.vim'
   " this test has intentional s:errors, don't use try/catch.
   source %
 else
diff --git a/src/testdir/test49.vim b/src/testdir/test49.vim
index e763c6f..f50062e 100644
--- a/src/testdir/test49.vim
+++ b/src/testdir/test49.vim
@@ -608,7 +608,7 @@
 " END_OF_TEST_ENVIRONMENT - do not change or remove this line.
 
 
-" Tests 1 to 15 were moved to test_viml.vim
+" Tests 1 to 15 were moved to test_vimscript.vim
 let Xtest = 16
 
 "-------------------------------------------------------------------------------
diff --git a/src/testdir/test_viml.vim b/src/testdir/test_vimscript.vim
similarity index 100%
rename from src/testdir/test_viml.vim
rename to src/testdir/test_vimscript.vim