Fixed part of issue #1307: using pin names for the pin labels in DEF importer, generating pin names on pin name property + generating net names on net name property for pin shapes.

testdata/lefdef/issue-1307c/in.def

@@ -0,0 +1,34 @@
+VERSION 5.7 ;
+DIVIDERCHAR "/" ;
+BUSBITCHARS "[]" ;
+DESIGN test ;
+UNITS DISTANCE MICRONS 2000 ;
+
+DIEAREA ( 0 0 ) ( 37520 7840 ) ;
+
+PINS 12 ;
+- VDD_PIN + NET VDD + SPECIAL + DIRECTION INOUT + USE POWER
+  + LAYER M2 ( -320 0 ) ( 320 37520 )
++ FIXED ( 37520 3920 ) W ;
+- VSS_PIN + NET VSS + SPECIAL + DIRECTION INOUT + USE GROUND
+ + PORT
+  + LAYER M2 ( -18760 0 ) ( 18760 640 )
++ FIXED ( 18760 -320 ) N
+ + PORT
+  + LAYER M2 ( -18760 0 ) ( 18760 640 )
++ FIXED ( 18760 8160 ) S
+ ;
+END PINS
+
+SPECIALNETS 4 ;
+- VSS  ( * VSS )
++ ROUTED M2 640 + SHAPE FOLLOWPIN ( 0 0 ) ( 37520 * )
+NEW M2 640 + SHAPE FOLLOWPIN ( 0 7840 ) ( 37520 * )
+  + USE GROUND
+ ;
+- VDD  ( * VDD )
++ ROUTED M2 640 + SHAPE FOLLOWPIN ( 0 3920 ) ( 37520 * )
+  + USE POWER
+ ;
+END SPECIALNETS
+END DESIGN

testdata/lefdef/issue-1307c/in.lef

@@ -0,0 +1,63 @@
+VERSION 5.7 ;
+
+BUSBITCHARS "[]" ;
+DIVIDERCHAR "/" ;
+UNITS
+	DATABASE MICRONS 1000 ;
+END UNITS
+
+MANUFACTURINGGRID 0.002 ;
+
+USEMINSPACING OBS OFF ;
+
+LAYER overlap
+	TYPE OVERLAP ;
+END overlap
+
+LAYER contact
+	TYPE CUT ;
+END contact
+
+LAYER metal1
+	TYPE ROUTING ;
+	DIRECTION HORIZONTAL ;
+END metal1
+
+LAYER via1
+	TYPE CUT ;
+END via1
+
+LAYER metal2
+	TYPE ROUTING ;
+	DIRECTION VERTICAL ;
+END metal2
+
+LAYER via2
+	TYPE CUT ;
+END via2
+
+LAYER metal3
+	TYPE ROUTING ;
+	DIRECTION HORIZONTAL ;
+END metal3
+
+LAYER via3
+	TYPE CUT ;
+END via3
+
+LAYER metal4
+	TYPE ROUTING ;
+	DIRECTION VERTICAL ;
+END metal4
+
+LAYER via4
+	TYPE CUT ;
+END via4
+
+LAYER metal5
+	TYPE ROUTING ;
+	DIRECTION HORIZONTAL ;
+END metal5
+
+
+END LIBRARY