[Bug 36340] valgrind shows several warnings in ddraw/tests/ddraw2.c

https://bugs.winehq.org/show_bug.cgi?id=36340

--- Comment #2 from Austin English  ---
==24782== Invalid read of size 4
==24782==    at 0x4ECE803: update_heap_entry (glsl_shader.c:905)
==24782==    by 0x4ECE93C: shader_glsl_update_float_vertex_constants
(glsl_shader.c:939)
==24782==    by 0x4EAAF2A: wined3d_device_set_vs_consts_f (device.c:2297)
==24782==    by 0x4F372E0: wined3d_stateblock_apply (stateblock.c:962)
==24782==    by 0x4B8A1ED: ddraw_set_cooperative_level (ddraw.c:951)
==24782==    by 0x4B8A75C: ddraw2_SetCooperativeLevel (ddraw.c:1028)
==24782==    by 0x4A88F26: test_coop_level_create_device_window (ddraw2.c:457)
==24782==    by 0x4AAA2F2: func_ddraw2 (ddraw2.c:6562)
==24782==    by 0x4B24F84: run_test (test.h:584)
==24782==    by 0x4B25373: main (test.h:654)
==24782==  Address 0xa128000 is 48,344 bytes inside a block of size 65,544
alloc'd
==24782==    at 0x7BC4C75D: notify_alloc (heap.c:255)
==24782==    by 0x7BC50FA1: RtlAllocateHeap (heap.c:1716)
==24782==    by 0x4EDF5F4: constant_heap_init (glsl_shader.c:6412)
==24782==    by 0x4EDF9BB: shader_glsl_alloc (glsl_shader.c:6481)
==24782==    by 0x4EA56CD: wined3d_device_init_3d (device.c:882)
==24782==    by 0x4B89381: ddraw_attach_d3d_device (ddraw.c:591)
==24782==    by 0x4B895B9: ddraw_create_swapchain (ddraw.c:634)
==24782==    by 0x4B8A124: ddraw_set_cooperative_level (ddraw.c:934)
==24782==    by 0x4B8A75C: ddraw2_SetCooperativeLevel (ddraw.c:1028)
==24782==    by 0x4A88F26: test_coop_level_create_device_window (ddraw2.c:457)
==24782==    by 0x4AAA2F2: func_ddraw2 (ddraw2.c:6562)
==24782==    by 0x4B24F84: run_test (test.h:584)
==24782==    by 0x4B25373: main (test.h:654)
==24782==