mk2rbc support for clear_var_list

Bug: 262303006
Test: Manually (Added usage to aosp_arm64 and ran rbc_dashboard.py on it)
Change-Id: I3cba8f1d69ba4f42b4bc125f0a1131c1d33f7efb
diff --git a/mk2rbc/mk2rbc.go b/mk2rbc/mk2rbc.go
index c3b192d..705eac3 100644
--- a/mk2rbc/mk2rbc.go
+++ b/mk2rbc/mk2rbc.go
@@ -78,6 +78,7 @@
 	"addprefix":                            &simpleCallParser{name: baseName + ".addprefix", returnType: starlarkTypeList},
 	"addsuffix":                            &simpleCallParser{name: baseName + ".addsuffix", returnType: starlarkTypeList},
 	"and":                                  &andOrParser{isAnd: true},
+	"clear-var-list":                       &simpleCallParser{name: baseName + ".clear_var_list", returnType: starlarkTypeVoid, addGlobals: true, addHandle: true},
 	"copy-files":                           &simpleCallParser{name: baseName + ".copy_files", returnType: starlarkTypeList},
 	"dir":                                  &simpleCallParser{name: baseName + ".dir", returnType: starlarkTypeString},
 	"dist-for-goals":                       &simpleCallParser{name: baseName + ".mkdist_for_goals", returnType: starlarkTypeVoid, addGlobals: true},