Fix parameter types of SbiRuntime::StepSTATIC_Impl

...which had been like that ever since 78d40bcd
"INTEGRATION: CWS npower10", for no apparent reason.

Change-Id: I4803d20fd81c37b55e10e4ea4ff1c5355b937161

basic/source/inc/runtime.hxx

@@ -338,7 +338,7 @@ class SbiRuntime
     void StepCALL( sal_uInt32, sal_uInt32 ),    StepCALLC( sal_uInt32, sal_uInt32 );
     void StepCASEIS( sal_uInt32, sal_uInt32 ),  StepSTMNT( sal_uInt32, sal_uInt32 );
     SbxVariable* StepSTATIC_Impl(
-        OUString& aName, SbxDataType& t, sal_uInt32 nOp2 );
+        OUString const & aName, SbxDataType t, sal_uInt32 nOp2 );
     void StepOPEN( sal_uInt32, sal_uInt32 ),    StepSTATIC( sal_uInt32, sal_uInt32 );
     void StepTCREATE(sal_uInt32,sal_uInt32),    StepDCREATE(sal_uInt32,sal_uInt32);
     void StepGLOBAL_P( sal_uInt32, sal_uInt32 ),StepFIND_G( sal_uInt32, sal_uInt32 );

basic/source/runtime/runtime.cxx

@@ -4603,7 +4603,7 @@ void SbiRuntime::StepFIND_G( sal_uInt32 nOp1, sal_uInt32 nOp2 )
 
 
 SbxVariable* SbiRuntime::StepSTATIC_Impl(
-    OUString& aName, SbxDataType& t, sal_uInt32 nOp2 )
+    OUString const & aName, SbxDataType t, sal_uInt32 nOp2 )
 {
     SbxVariable* p = nullptr;
     if ( pMeth )