gn format: add call wrapping

tools/gn/format_test_data/021.gn

Index: tools/gn/format_test_data/021.gn
diff --git a/tools/gn/format_test_data/021.gn b/tools/gn/format_test_data/021.gn
new file mode 100644
index 0000000000000000000000000000000000000000..355735db13597059a15f088993c17a43133c0ed0
--- /dev/null
+++ b/tools/gn/format_test_data/021.gn
@@ -0,0 +1,33 @@
+f(aaaaaaaaaaaaaaaaaaa)
+
+f(aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)
+
+# Exactly 80 wide.
+f(aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaa, aaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa, aaaaa)
+
+aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
+
+aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
+
+aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaa, aaaaaaaaa)
+
+aaaaaaaaaa(aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaa.aaaaaaaaaaaaaaa)
+
+# 80 ---------------------------------------------------------------------------
+f(aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaa)
+
+aaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaa, aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa))
+
+# 80 ---------------------------------------------------------------------------
+f(aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
+
+aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaa, aaaaaaaaaaaa)
+
+# 80 ---------------------------------------------------------------------------
+aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaa, aaaaaaaaaaaa)
+
+aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaa)
+
+aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaa)
+
+somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd, ddddddddddddddddddddddddddddd), test)