Fix parsing of double dot operators for FormCalc

Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

Roll testing/corpus to d671154 to pick up the test.

BUG=pdfium:434
TBR=dsinclair@chromium.org

Committed: https://pdfium.googlesource.com/pdfium/+/3523c1f23e4c48850fcba5b1cb1bd8f311407e00

[Tom Sepez, 2016-03-22 21:38:12]

Description was changed from

==========
Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

BUG=pdfium:434
R=dsinclair@chromium.org
==========

to

==========
Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

BUG=pdfium:434
TBR=dsinclair@chromium.org
==========

[Tom Sepez, 2016-03-22 21:38:45]

Dan, TBR as I've already LGTM'd the original.

[Tom Sepez, 2016-03-22 21:44:35]

Description was changed from

==========
Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

BUG=pdfium:434
TBR=dsinclair@chromium.org
==========

to

==========
Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

Roll testing/corpus to d671154 to pick up the test.

BUG=pdfium:434
TBR=dsinclair@chromium.org
==========

[Tom Sepez, 2016-03-22 23:05:22]

Description was changed from

==========
Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

Roll testing/corpus to d671154 to pick up the test.

BUG=pdfium:434
TBR=dsinclair@chromium.org
==========

to

==========
Fix parsing of double dot operators for FormCalc

Patch by cherycherian.
patch from issue 1810153003 at patchset 1 (http://crrev.com/1810153003#ps1)

FormCalc expressions containing double-dot operators in SOM expressions
were failing since XFA_ResolveNodes_AnyChild was always stripping the
leading character.

Roll testing/corpus to d671154 to pick up the test.

BUG=pdfium:434
TBR=dsinclair@chromium.org

Committed:
https://pdfium.googlesource.com/pdfium/+/3523c1f23e4c48850fcba5b1cb1bd8f31140...
==========

[Tom Sepez, 2016-03-22 23:05:23]

Committed patchset #4 (id:60001) manually as
3523c1f23e4c48850fcba5b1cb1bd8f311407e00 (presubmit successful).