patch 8.2.0355: Vim9: str_val is confusing, it's a number

Problem:    Vim9: str_val is confusing, it's a number
Solution:   Rename to stnr_val.
diff --git a/src/version.c b/src/version.c
index 1cbe9e2..f494186 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    355,
+/**/
     354,
 /**/
     353,
diff --git a/src/vim9.h b/src/vim9.h
index 35d34e3..38286b3 100644
--- a/src/vim9.h
+++ b/src/vim9.h
@@ -36,7 +36,7 @@
     ISN_STOREREG,    // pop into register isn_arg.number
     // ISN_STOREOTHER, // pop into other script variable isn_arg.other.
 
-    ISN_STORENR,    // store number into local variable isn_arg.storenr.str_idx
+    ISN_STORENR,    // store number into local variable isn_arg.storenr.stnr_idx
 
     // constants
     ISN_PUSHNR,		// push number isn_arg.number
@@ -178,8 +178,8 @@
 
 // arguments to ISN_STORENR
 typedef struct {
-    int		str_idx;
-    varnumber_T	str_val;
+    int		stnr_idx;
+    varnumber_T	stnr_val;
 } storenr_T;
 
 // arguments to ISN_STOREOPT
diff --git a/src/vim9compile.c b/src/vim9compile.c
index c9f72f5..6618b6a 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -773,8 +773,8 @@
     RETURN_OK_IF_SKIP(cctx);
     if ((isn = generate_instr(cctx, ISN_STORENR)) == NULL)
 	return FAIL;
-    isn->isn_arg.storenr.str_idx = idx;
-    isn->isn_arg.storenr.str_val = value;
+    isn->isn_arg.storenr.stnr_idx = idx;
+    isn->isn_arg.storenr.stnr_val = value;
 
     return OK;
 }
@@ -3789,8 +3789,8 @@
 		    garray_T	*stack = &cctx->ctx_type_stack;
 
 		    isn->isn_type = ISN_STORENR;
-		    isn->isn_arg.storenr.str_idx = idx;
-		    isn->isn_arg.storenr.str_val = val;
+		    isn->isn_arg.storenr.stnr_idx = idx;
+		    isn->isn_arg.storenr.stnr_val = val;
 		    if (stack->ga_len > 0)
 			--stack->ga_len;
 		}
diff --git a/src/vim9execute.c b/src/vim9execute.c
index 094ee72..2fcb948 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -827,10 +827,10 @@
 
 	    // store number in local variable
 	    case ISN_STORENR:
-		tv = STACK_TV_VAR(iptr->isn_arg.storenr.str_idx);
+		tv = STACK_TV_VAR(iptr->isn_arg.storenr.stnr_idx);
 		clear_tv(tv);
 		tv->v_type = VAR_NUMBER;
-		tv->vval.v_number = iptr->isn_arg.storenr.str_val;
+		tv->vval.v_number = iptr->isn_arg.storenr.stnr_val;
 		break;
 
 	    // push constant
@@ -1848,8 +1848,8 @@
 		break;
 	    case ISN_STORENR:
 		smsg("%4d STORE %lld in $%d", current,
-				iptr->isn_arg.storenr.str_val,
-				iptr->isn_arg.storenr.str_idx);
+				iptr->isn_arg.storenr.stnr_val,
+				iptr->isn_arg.storenr.stnr_idx);
 		break;
 
 	    // constants