avoid ImNewDummy issue #80 for MSVC

cimgui.h

@@ -588,7 +588,6 @@ typedef struct ImVector_TextRange {int Size;int Capacity;TextRange* Data;} ImVec
 typedef struct ImVector_ImVec4 {int Size;int Capacity;ImVec4* Data;} ImVector_ImVec4;
 typedef struct ImVector_ImDrawIdx {int Size;int Capacity;ImDrawIdx* Data;} ImVector_ImDrawIdx;
 typedef struct ImVector_ImVec2 {int Size;int Capacity;ImVec2* Data;} ImVector_ImVec2;
-struct ImNewDummy {};
 struct ImGuiOnceUponAFrame
 {
      int RefFrame;

generator/generator.lua

@@ -1094,6 +1094,9 @@ local function gen_structs_and_enums(cdefs,templates)
         local spaces_to_add = 0 --desired_linelen - linelen
         local linecom = line..string.rep(" ",spaces_to_add)..comment
         
+         -- ImNewDummy drop for MSVC
+        if line:match"ImNewDummy" then break end
+        
         if line:match(namespace_re) then
             in_namespace = true
         end

generator/output/cimgui.h

@@ -588,7 +588,6 @@ typedef struct ImVector_TextRange {int Size;int Capacity;TextRange* Data;} ImVec
 typedef struct ImVector_ImVec4 {int Size;int Capacity;ImVec4* Data;} ImVector_ImVec4;
 typedef struct ImVector_ImDrawIdx {int Size;int Capacity;ImDrawIdx* Data;} ImVector_ImDrawIdx;
 typedef struct ImVector_ImVec2 {int Size;int Capacity;ImVec2* Data;} ImVector_ImVec2;
-struct ImNewDummy {};
 struct ImGuiOnceUponAFrame
 {
      int RefFrame;