inpcom.c, inp_modify_exp(), bug fix, enforce precedence when numparm substitutions come into play

tests/regression/misc/bugs-1.cir

@@ -13,6 +13,14 @@ v1002_aux aux1002 0 DC=3
 b1002_t  n1002_t 0  V=(-(v(aux1002)))
 v1002_g  n1002_g 0  -3
 
+.param aux1003=-2
+
+b1003_t  n1003_t 0  V='aux1003**2'
+v1003_g  n1003_g 0  4
+
+b1004_t  n1004_t 0  V='-aux1003**2'
+v1004_g  n1004_g 0  -4
+
 * ----------------------------------------
 
 .control
@@ -24,7 +32,7 @@ op
 let total_count = 0
 let fail_count = 0
 
-let tests = 1001 + vector(2)
+let tests = 1001 + vector(4)
 
 foreach n $&tests
   set n_test = "n{$n}_t"

tests/regression/misc/bugs-1.out

@@ -5,4 +5,4 @@ Doing analysis at TEMP = 27.000000 and TNOM = 27.000000
 
 
 No. of Data Rows : 1
-INFO: 0 of 2 tests failed
+INFO: 0 of 4 tests failed