[Refactor] change tab to 4 space

Author: ss41979310

example/java/ClassHierarchy.gdl

@@ -2,7 +2,7 @@
 use coref::java::*
 
 fn default_java_db() -> JavaDB {
-	return JavaDB::load("coref_java_src.db")
+    return JavaDB::load("coref_java_src.db")
 }
 
 /**
@@ -19,5 +19,5 @@ fn class_hierarchy(className : string, superClassName : string) -> bool {
 }
 
 fn main() { 
-	output(class_hierarchy())
+    output(class_hierarchy())
 }

example/java/ClassMethods.gdl

@@ -2,7 +2,7 @@
 use coref::java::*
 
 fn default_java_db() -> JavaDB {
-	return JavaDB::load("coref_java_src.db")
+    return JavaDB::load("coref_java_src.db")
 }
 
 // Find all methods of the class
@@ -16,5 +16,5 @@ fn methods(className : string, methodName : string) -> bool {
 }
 
 fn main() { 
-	output(methods())
+    output(methods())
 }

language/javascript/lib/Completion.gdl

@@ -8,7 +8,7 @@ impl Completion {
     @inline
     pub fn __all__() -> *Completion {
         yield Completion {id: 1001, name: "NormalCompletion"}
-    	yield Completion {id: 1101, name: "ReturnCompletion"}
+        yield Completion {id: 1101, name: "ReturnCompletion"}
         // BooleanCompletion
         yield Completion {id: 1201, name: "BooleanCompletion"}
         yield Completion {id: 1202, name: "TrueBooleanCompletion"}