extend clone functions

cell/model/FormulaObjects/_xlfnFunctions.js

@@ -60,7 +60,7 @@
 		cCHISQ_DIST, cCHISQ_DIST_RT, cCHISQ_INV, cCHISQ_INV_RT, cCHISQ_TEST, cCONFIDENCE_NORM, cCONFIDENCE_T,
 		cCOVARIANCE_P, cCOVARIANCE_S, cF_DIST, cF_DIST_RT, cF_INV, cF_INV_RT, cF_TEST, cFORECAST_ETS,
 		cFORECAST_ETS_CONFINT, cFORECAST_ETS_SEASONALITY, cFORECAST_ETS_STAT, cFORECAST_LINEAR, cGAMMA, cGAMMA_DIST,
-		cGAMMA_INV, cGAMMALN_PRECISE, cHYPGEOM_DIST, cLOGNORM_DIST, cLOGNORM_INV, cMODE_MULT, cMODE_SNGL,
+		cGAMMALN_PRECISE, cHYPGEOM_DIST, cLOGNORM_DIST, cLOGNORM_INV, cMODE_MULT, cMODE_SNGL,
 		cNEGBINOM_DIST, cNORM_DIST, cNORM_INV, cNORM_S_DIST, cNORM_S_INV, cPERCENTILE_EXC, cPERCENTILE_INC,
 		cPERCENTRANK_EXC, cPERCENTRANK_INC, cPERMUTATIONA, cPHI, cPOISSON_DIST, cQUARTILE_EXC, cQUARTILE_INC, cRANK_AVG,
 		cRANK_EQ, cSKEW_P, cSTDEV_P, cSTDEV_S, cT_DIST, cT_DIST_2T, cT_DIST_RT, cT_INV, cT_INV_2T, cT_TEST, cVAR_P,
@@ -542,18 +542,6 @@
 	cGAMMA_DIST.prototype = Object.create(cBaseFunction.prototype);
 	cGAMMA_DIST.prototype.constructor = cGAMMA_DIST;
 
-	/**
-	 * @constructor
-	 * @extends {AscCommonExcel.cBaseFunction}
-	 */
-	function cGAMMA_INV() {
-		cBaseFunction.call(this, "GAMMA.INV");
-		this.isXLFN = true;
-	}
-
-	cGAMMA_INV.prototype = Object.create(cBaseFunction.prototype);
-	cGAMMA_INV.prototype.constructor = cGAMMA_INV;
-
 	/**
 	 * @constructor
 	 * @extends {AscCommonExcel.cBaseFunction}