Minor changes/addons for annotation APIs

As per Lei's comments while looking back at annotation API CLs to
attempt to fix Bug 747.

Bug=pdfium:737

Change-Id: I96369bf8dcc7afdf49e9a137e7bcba4ff1aeef67
Reviewed-on: https://pdfium-review.googlesource.com/6431
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/fpdfsdk/fpdfview_c_api_test.c b/fpdfsdk/fpdfview_c_api_test.c
index 5a65fc4..ae69d45 100644
--- a/fpdfsdk/fpdfview_c_api_test.c
+++ b/fpdfsdk/fpdfview_c_api_test.c
@@ -35,12 +35,19 @@
 // Function to call from gtest harness to ensure linker resolution.
 int CheckPDFiumCApi() {
     //fpdf_annot.h
+    CHK(FPDFAnnot_IsSupportedSubtype);
+    CHK(FPDFPage_CreateAnnot);
     CHK(FPDFPage_GetAnnotCount);
     CHK(FPDFPage_GetAnnot);
     CHK(FPDFAnnot_GetSubtype);
+    CHK(FPDFAnnot_SetColor);
     CHK(FPDFAnnot_GetColor);
+    CHK(FPDFAnnot_HasAttachmentPoints);
+    CHK(FPDFAnnot_SetAttachmentPoints);
     CHK(FPDFAnnot_GetAttachmentPoints);
+    CHK(FPDFAnnot_SetRect);
     CHK(FPDFAnnot_GetRect);
+    CHK(FPDFAnnot_SetText);
     CHK(FPDFAnnot_GetText);
 
     // fpdf_dataavail.h